Police also defused another device in Chelsea and found additional pipe bombs in Rahimi’s hometown of Elizabeth, New Jersey, where he worked in his family’s fried chicken restaurant.

Rahimi was critically wounded in a shootout with police on September 19 before being captured, and was found with a handwritten journal lauding Osama bin Laden and US-born Al-Qaeda recruiter Anwar al-Awlaki.

Since his arrest, two other lone-wolf attackers have carried out bombings in New York. A Bangladeshi driver detonated a bomb in a subway passageway, wounding himself and three other people in December.